Car-truck.



J. C. BARBER.

GAR TRUGK. APPLIGATION FILED SEPT. 12, 1910.

980,739, l Patented .13113, 1911.

5 SHEETS-SHEET 1.

J. C. BARBER.

GAR TRUGK.

APPLICATION FILED SEPT. l2, 1910.

APatented Jan. 3, 1911.

Ilfvezdor/ meys J. C. BARBER.

GAB TBUGK. AAPPLIOATION FILED SEPT. 12, 1910.

Patented .12113, 1911.

5 HBET-BEEET 3,

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By lzisAZzlon/zel 5f w J. C. BARBER.

GAR TRUCK.

APPLIoATIoN FILED SEPT. 12, 1910.

5 SHEETS-SHEET 4.

J. G. BARBER.

CAB. TRUCK.

APPLICATION FILED SEPT. 12, 1910.

Patented 1311.3, 1911.

5 SHEETS-SHEET 5.

UNITED STATES PATENT oEEIcE.

JOHN C. BARBER, 0F CHICAGO, ILLINOIS, ASSIGNOR T0. STANDARD CAR TRUCKCOM- IPANY,` 0F CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

CAR-TRUCK.

Specification of Letters Patent.

Patented Jan. 3, 191.1.

Application led September 12, 1910. Serial No. 581,675.

To all whom it may concern:

Be it known that I, JOHN C. BARBER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Car-Trucks; and I dohereby declare the following to be a full,

clear, and exact description of the invention,

vsuch as will enable others skilled in the art to which it appertains tomake and use the same.

view showing approximately one-half of the e truck, the wheels thereofbeing removed; Fig. 3 is a View partl in elevation and partlyintransverse vertical section showing the truck frame with the wheelsremoved; Fig. 4 is a horizontal section taken approxif mately on theline af* 924 of Fig. 1, the springs being removed and some parts beingbroken away; Fig. 5 is a vertical section xtaken apf proximately on thelinea:5 m5 of Fig. 3, some parts being broken away and lsome parts beingshown in full; Fig. 6 is a horizontal section taken approximately 'onthe line av of Fig. 5, some parts being removed and some parts beingbroken away; and Fig. 7 is a det-ail in transversevertical section takenapproximately on the line m7 m7 of Fig.- 5,

some parts being removed and some parts being roken away.

The truck side frames 1, which are advisably of cast steel, arepreferably formed so that the various parts thereof have T- railcross-sections, and their ends are arranged to rest directly uponfreight journal boxes 2 of the Master Carbuilders type, and just inwardof the said boxes, said side `frames are formed with vertical recessesfor the reception of equalizer spring devices that support equalizingbars. As preferably constructed, theserecesses are formed betweenvertically extended centrally ribbed against the boxes 2. One, or more,equalizer springs may be employed in each of the above noted openings,but preferably, these equalizer springs are arranged in pairs and are inthe form of heavy coiled springs 4, that rest upon spring bases affordedby laterally projected portions v5, of the side frames 1. Spring caps 6rest uponV the equalizer. springs and are notched at their front andrear edges so that they are guided for vertical movements'by the rlbbedguides 3. These spring caps 6, as is evident, s an the cooperatingsprings and project, bot at the inner and outer sides of the ltruckframes. j

Tie straps or bars 8 for application to the bottom of the journal boxes,are rigidlysecured to the lower end portions of the truck side fr'ames,in any suitable way, but are preferably riveted thereto,A as shown inthe drawings. The ordinary vertically extended journal box bolts, notshown, are adapted to be passed vertically through the tie bars f l 8,the journal box lugs and the upper projecting endsof the side fralnes.i,

The T-rail section side frames are eachl connected to two invertedT-rail section equalizing bars 9, the said equalizing barsl orequalizers being located, one just inside and the other outsideof thecentral portions of the said side frames,'with their ends seat,- ed uponand interlocked with the projecting,

portions of the equalizer spring caps 6. Each equalizerlf) carries abolster supporting spring, which springs act in pairs, and arepreferably of the elliptical type. These elliptical springs 10 areprovided with the customary hubs or bands 11, the lower 0f which rest in'suitable seats l2 formed for the reception thereof onthe centralportions of the equalizing bars 9. Transversely reduced, verticallyextended strut forming portions 1a of the side frames 1 are locatedbetween the end portions of the inner and outer'springs 10, as bestshown in Figs. 1 and 4.' Between the struts 1a the said side 'frames areformed with large openings 1",

in the upper corners of which the ends of i angle bar transoms or crossties 13 are rigidly secured, preferably by rivets 14 applied to theinner and outer flanges of the said side frames and to the vertical andhorizontal flanges of the said transoms. le-l tween the transoms 13 theside trames are formed with bolster passages y'15 that open at theirlower portions into the large openings 1b but are of considerable lesswidth than the latter.

At the front and rear portions of the bol'- ster passages 15 the sideframes are formed with quite short vertical-ly extended bolster guidingcolumns 16 that are made consider ably wider than the said side framesand are, in themselves, of a novel construction presently to bedescribed.

The truck bolster 17, at itsiends, projects through the bolster passages15 and is formed with depending wearinef flan es 17a that engage theinner face ctiD the olster guiding columns or surfaces 16. Stop lugs 18on the sides of the bolster are engageable with the outer edges of thebolster columns 16, to limit the endwise movements of said bolster.

Seated on the upper hubs or bands 11 of each pair of elliptical springs10 is a combined spring cap and roller base 19 provided with concaveseats 20, in which rollers 21 are seated. On each pair of rollers 21 isa roller cap 22 provided with concave seats for engagement with therollers. Shimming blocks 23 are, as shown, interposed between the rollercaps 22 and the end portions of the horizontal web of the truck bolster.The depending iianges 17 a, depend ing end flanges 24 and depending lugs25,

all on the said truck bolster, afford seats that receive the shimmingblocks 23 and roller caps 22 and hold the same against movements bothendwise and transversely of the said bolster. Utherwisestated, the saidparts 22 and 23 are held for traveling movements with the bolstertransversely of the truck. From what has been said, it, oi course,follows that the truck bolster'is mounted for endwise travelingmovements transversely of the truck and is yieldingly held in anintermediate or central position by gravity acting through the rollers21 and cooperating concave seats of the combined spring cap and rollerbase 19 and of the spring cap 22.

To provide a maximum bearing surface in the wearing'tlanges 17a of thetruck bolster, and in the coperating frictionen aging surface ot' thespring cap and roller ase 19 and columns 16, the isaid parts are pref#erably constructed as follows: The said flanges 17a are extended down-to a. point considerably below the bottom of the rollers 21, and thespring caps and roller base 19 are formed at front and rear withextensions that extend horizontally under the lower edges of the saidanges 17, and at points outside' of the said flanges 176'* are providedwith upwardly extended wearing flanges 26 that overlap, vertically, thesaid iianges 17 and engage recessed bearing surfaces 27 of the bolstercolumns 1G.- Other wise stated, the lower edges of the bolster flanges17d work in grooves or clearance channels formed in the main and endportions of the combined spring caps and roller bases 19.

'l`o hold the combined spring caps and roller bases 19 against movementstransversely of the truck, but free for vertical movements, and at thesame time to increase the extent of the frictionally engaging surtace ofthe parts 16 and 26, both ot' the said parts, in horizontalcrosssection, are iliade of zifzag' form, that is, are provided vwithinterlhpping grooves and ribs having frictional 'engagement indicated inFig. G. By this construction also, (see particularly Figs. 5 and 6), theengagement between the said parts 16 and 26 is entirely within theformer and thereby aV bolster column of maximum width and bearing roller21 of maximum length are made possible.

'lhe transoms 13 are so positioned that they afford constant supports towhich the break hanger brackets 29 are applied just inside of the truckside frames 1.

By the inverted or alternated and interlapped arrangement of the l"railportions of the side trames 1, and of the e ualizing bars 9, ya verycompact, and at tie same time, a very strong construction is aorded. Thetruck wheels 30 are indicated in diagram only in Fig. 1. The journal box2 may be separated from the truck side frames, when the box bolts areremoved, simply Vby moviniy the same laterally in a direction away iiomthe central liortion of the truck. lt will also be noted tliat thetransoms 1B are attached to the side frames 1, approximately in ahorizontal line with the truck bolster, so that the-lateral shocks, dueto engagement of the bolster lugs 18 with the bolster columns 16, willbe transmitted almost directly to the said transoms and withoutproducing strains in the side frames which tend to rock or tilt the sameout of vertical planes.

lVhat l claim is:

1. ln a ear truck, the combination with side frames and journal boxesapplied to the ends thereof, of equalizer springs applied to the saidside frames just inward of said journal boxes, equalizer bars resting onsaid equalizer springs, a truck bolster having its ends guided by saidside frames, and springs supporting said bolster from said equalizerbars.

2. In a car truck, the combination with side frames and journal boxesapplied to the ends thereof, of equalizer springs applied .in pairs tosaidside frames just inward of said journal boxes and on both sides ofsaid side frames, equalizer bars applied in pairs to the said pairs ofequalizer springs and on both sides of said lside frames, a truck iis` ibolster guided at its ends by said side 'truck side frames havingbolster frames, and springs supporting said bolster from said equalizerbars.

Ina car truck, he combination with side frames and journal boxes appliedto the ends thereof, of equalizer springs applied in pairs to said sideframes just inward of -said journal boxes and on both sides of said-sideframes, equalizer bars applied'in pairsto said pairs of equalizersprings and on both sides of said side frames, a truck bolster guided atits ends by said side frames, and elliptical springs arranged in pairsand on both sides of said side frames for Ysupporting said bolster fromsaid equalizer bars. j

4. In a truck, the combination with the side frames and equalizersprings applied thereto, of equalizer bars supported by Said equalizersprings, the said equalizer bars and lower members of said side frameshaving reversely arranged interlapping T-rail from said equalizer bars.

Inv a car truck, the combination with side frames and journal boxesapplied to the ends thereof, side frames having spring cap guides justinward of said journal boxes, vertically movable laterally projectingspring caps guided by said cap guides, pairs of coiled springsinterposed between said spring caps and said side frames, pairs ofequalizer bars resting on said spring caps and arranged on both sides ofsaid side frames, a truck bolster 'guided by said side frames andsprings supporting said bolster from said equalizer bars.

G. In a car truck, the combination with uiding surfaces, of a truckbolster having ependsurfaces of said side frames, bolster' supportingsprings carried by said side frames, combined 4spring caps and rollerbases carried by said springs and provided with angular ends that extendoutward of and above the flanges of said bolster and are guided forvertical movements by the bolster guiding surfaces of said side-frames,and rollers 'carrying saidv bolster on said combined spring caps androller bases with freedom for' endwise movements transversely of thetruck.

7 In a car truck, the combination with side frames having bolsterguiding surfaces formed with vertical grooves, of bolster supportingsprings carried by said side frames, of combined spring caps and rollerbases carried by said springs and provided at their en ds withvertically grooved wearing surfacesI that are interla ped with thegrooves of said bolster guidlng surfaces, lateral motion rollers on saidspring caps and roller bases, and a-truck bolster mounted on saidrollers 'for endwise movements transversely of the truck.

8. In a car truck, the combination with side frames, of equalizersprings carried by said side frames, equalizer bars resting on saidequalizing springs, a truck bolster having its ends guided the said sideframes, and springs indepen ent of the said equalizer springs,supporting the said bolster from said equalizing bars.

In testimony whereof I atiix my signature in presence of two witnesses.

JOHN C. BARBER.

Witnesses:

LY. W. BARBER, M. BELLE BARBER. l

ing anges engageable with the guiding

